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diff --git a/toolkit/mozapps/webextensions/test/xpcshell/test_duplicateplugins.js b/toolkit/mozapps/webextensions/test/xpcshell/test_duplicateplugins.js
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+++ b/toolkit/mozapps/webextensions/test/xpcshell/test_duplicateplugins.js
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+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+Components.utils.import("resource://testing-common/MockRegistrar.jsm");
+
+var Ci = Components.interfaces;
+
+// This verifies that duplicate plugins are coalesced and maintain their ID
+// across restarts.
+
+var PLUGINS = [{
+ name: "Duplicate Plugin 1",
+ description: "A duplicate plugin",
+ version: "1",
+ blocklisted: false,
+ enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+ get disabled() {
+ return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+ },
+ filename: "/home/mozilla/.plugins/dupplugin1.so"
+}, {
+ name: "Duplicate Plugin 1",
+ description: "A duplicate plugin",
+ version: "1",
+ blocklisted: false,
+ enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+ get disabled() {
+ return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+ },
+ filename: "/usr/lib/plugins/dupplugin1.so"
+}, {
+ name: "Duplicate Plugin 2",
+ description: "Another duplicate plugin",
+ version: "1",
+ blocklisted: false,
+ enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+ get disabled() {
+ return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+ },
+ filename: "/home/mozilla/.plugins/dupplugin2.so"
+}, {
+ name: "Duplicate Plugin 2",
+ description: "Another duplicate plugin",
+ version: "1",
+ blocklisted: false,
+ enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+ get disabled() {
+ return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+ },
+ filename: "/usr/lib/plugins/dupplugin2.so"
+}, {
+ name: "Non-duplicate Plugin", // 3
+ description: "Not a duplicate plugin",
+ version: "1",
+ blocklisted: false,
+ enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+ get disabled() {
+ return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+ },
+ filename: "/home/mozilla/.plugins/dupplugin3.so"
+}, {
+ name: "Non-duplicate Plugin", // 4
+ description: "Not a duplicate because the descriptions are different",
+ version: "1",
+ blocklisted: false,
+ enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+ get disabled() {
+ return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+ },
+ filename: "/usr/lib/plugins/dupplugin4.so"
+}, {
+ name: "Another Non-duplicate Plugin", // 5
+ description: "Not a duplicate plugin",
+ version: "1",
+ blocklisted: false,
+ enabledState: Ci.nsIPluginTag.STATE_ENABLED,
+ get disabled() {
+ return this.enabledState == Ci.nsIPluginTag.STATE_DISABLED;
+ },
+ filename: "/home/mozilla/.plugins/dupplugin5.so"
+}];
+
+// A fake plugin host to return the plugins defined above
+var PluginHost = {
+ getPluginTags: function(countRef) {
+ countRef.value = PLUGINS.length;
+ return PLUGINS;
+ },
+
+ QueryInterface: function(iid) {
+ if (iid.equals(Components.interfaces.nsIPluginHost)
+ || iid.equals(Components.interfaces.nsISupports))
+ return this;
+
+ throw Components.results.NS_ERROR_NO_INTERFACE;
+ }
+}
+
+MockRegistrar.register("@mozilla.org/plugin/host;1", PluginHost);
+
+var gPluginIDs = [null, null, null, null, null];
+
+function run_test() {
+ do_test_pending();
+ createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "1", "1.9.2");
+ Services.prefs.setBoolPref("media.gmp-provider.enabled", false);
+
+ startupManager();
+
+ run_test_1();
+}
+
+function found_plugin(aNum, aId) {
+ if (gPluginIDs[aNum])
+ do_throw("Found duplicate of plugin " + aNum);
+ gPluginIDs[aNum] = aId;
+}
+
+// Test that the plugins were coalesced and all appear in the returned list
+function run_test_1() {
+ AddonManager.getAddonsByTypes(["plugin"], function(aAddons) {
+ do_check_eq(aAddons.length, 5);
+ aAddons.forEach(function(aAddon) {
+ if (aAddon.name == "Duplicate Plugin 1") {
+ found_plugin(0, aAddon.id);
+ do_check_eq(aAddon.description, "A duplicate plugin");
+ }
+ else if (aAddon.name == "Duplicate Plugin 2") {
+ found_plugin(1, aAddon.id);
+ do_check_eq(aAddon.description, "Another duplicate plugin");
+ }
+ else if (aAddon.name == "Another Non-duplicate Plugin") {
+ found_plugin(5, aAddon.id);
+ do_check_eq(aAddon.description, "Not a duplicate plugin");
+ }
+ else if (aAddon.name == "Non-duplicate Plugin") {
+ if (aAddon.description == "Not a duplicate plugin")
+ found_plugin(3, aAddon.id);
+ else if (aAddon.description == "Not a duplicate because the descriptions are different")
+ found_plugin(4, aAddon.id);
+ else
+ do_throw("Found unexpected plugin with description " + aAddon.description);
+ }
+ else {
+ do_throw("Found unexpected plugin " + aAddon.name);
+ }
+ });
+
+ run_test_2();
+ });
+}
+
+// Test that disabling a coalesced plugin disables all its tags
+function run_test_2() {
+ AddonManager.getAddonByID(gPluginIDs[0], function(p) {
+ do_check_false(p.userDisabled);
+ p.userDisabled = true;
+ do_check_true(PLUGINS[0].disabled);
+ do_check_true(PLUGINS[1].disabled);
+
+ do_execute_soon(run_test_3);
+ });
+}
+
+// Test that IDs persist across restart
+function run_test_3() {
+ restartManager();
+
+ AddonManager.getAddonByID(gPluginIDs[0], callback_soon(function(p) {
+ do_check_neq(p, null);
+ do_check_eq(p.name, "Duplicate Plugin 1");
+ do_check_eq(p.description, "A duplicate plugin");
+
+ // Reorder the plugins and restart again
+ [PLUGINS[0], PLUGINS[1]] = [PLUGINS[1], PLUGINS[0]];
+ restartManager();
+
+ AddonManager.getAddonByID(gPluginIDs[0], function(p_2) {
+ do_check_neq(p_2, null);
+ do_check_eq(p_2.name, "Duplicate Plugin 1");
+ do_check_eq(p_2.description, "A duplicate plugin");
+
+ do_execute_soon(do_test_finished);
+ });
+ }));
+}